Adjustable fan



L. R. STREET ADJUSTABLE FAN New 11 11924. 11,E%,74

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- Patented Nov. 11, 1924.

LOUIS R. STREET, INDEPENDENCE, MISSOURI.

/ ADJUSTABLE FAN.

Application fifled January 19, 1923. Serial No. 613,610.

To all whom it may concern:

Be it known that I, LOUIS R. STREET, a citizen of the United States, residing at Independence, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Adjustable Fans, of which the following is a specification.

My invention relates to adjustable fans, which among other uses, may be employed to advantage on motor vehicles, and my primary object is to provide a fan in Which the blades may be adjusted to three different positions, to wit: first, to direct a current of air rearwardly upon the engine to keep the same from becoming overheated during the summer; second, to draw the warm air from around the engine and direct it through the openings in the radiator to warm the water therein during the winter season; and third, to neutral position so that the air will not be directed either toward the engine or the radiator.

A further object is to provide means whereby the fan blades may be adjusted to the different positions abovepointed out, from the dash of the motor vehicle, so that the driver need not leave his seat.

In order that the invention may be fully understood, reference will now be had to the accompanying drawing, in which:

Fig. 1 is a side elevation of the device applied to the engine of a motor vehicle.

Fig. 2 is an enlarged detail longitudinal section of the device.

Fig. 3 is a vertical cross section on line IIIIII of Fig. 2.

Fig. 4; is a vertical cross section on line IV-IV of Fig. 2.

Fig 5 is a detail plan view of one of the fan blades adjusted to direct the air against the engine.

Fig. 6 is a detail plan view of the fan blade adjusted to neutral position.

Fig. 7 is a detail plan view of the fan blade adjusted to direct the air forward against the radiator.

In carrying out the invention, I employ a spindle 2, provided near its rear end with a rectangular portion 4. The reduced threaded rear end 6 of said spindlei 2 is firmly secured to a bracket 8, which is se-.

cured to the forward portion of the yengine A.

10 designates a cylindrical rotary member provided with a central hub 12 connected to said cylindrical member by arms 14. The hub 12 is journaled upon the spindle 2 between the forward end of the rectangular portion 4 and a nut and washer 16 and 18, respectively, at the forward end of said spindle 2. The cylindrical member 10 constitutes a pulley 20 and the fan hub 22.

The pulley 20 may be driven in the usual manner from the drive pulley C, through the intermediacy of a belt D. The fan hub 22 has a plurality of peripheral bearings 24 equal in number to the fan blades 26, which are provided with pivots 28 journaled in said bearings 24 and provided at their inner ends with cranks 30.

The free ends of the cranks 30 are pivotally secured to the forward ends of a corresponding number of connecting rods 32,

loosely secured at their rear ends to an annulus 32 journaled on ball bearings 36 mounted in the peripheral raceway of a disk 38 slidably mounted upon the rectangularport-ion 4 of the spindle 2.

40 designates a lever fulcrumed upon a pivot 42 secured to the upper end of the bracket 8. The lower forked end of the lever 40 is pivotally connected to /lugs 14 projecting rearwardly from. the disk 38. The lever 40 is normally held in its forward position as shown by Fig. 2, by means of a spring 48 connected at its rear end to the bracket 8. The lever 40 may be shifted rearwardly against the action of the spring 48othrough the intermediacy of a cable 47 extending rearwardly and connected to a ratchet bar 49 provided with teeth 50, 52 and 54 and a handle 56 arranged within convenient reach of the driver.

Assuming that the fan is driven clockwise, the blades 26 are adjusted tothe position disclosed by Figs. 2 and 5, for directing a current of air against the engine A. When it is desirable to direct a current of air either rearward against the engine A or forward against the radiator B, the spindle 56 is grasped and drawn backwardl to engage the tooth 52 over the stop 58. his 0-peration causes the lever 40 to slide the disk 38 forwardly upon the rectangular portion 4: of the spindle 2 and adjust the fan blades 26 to neutral position, Fig. 6, through the i'ntermediacy of the connecting rods 32 and the cranks 30. When it is desired to draw the warm air from the engine A and direct it against the radiator B, the handle 56 is drawn backwardly to engage the tooth with the stop 58, which operation causes the lever 40 to shift the disk further forward and adjust the fan blades 26 to the position disclosed by Fig 7. Stops 60 are provided .to limit the pivotal movement of the blades 26.

By providing a fan in which the blades I 26 may be adjusted to direct the air as above in device.

%Vhile I have shown and described the preferred form of my device, I reserve the right to make such changes in the construction, combination and arrangement of parts, as properly fall within the spirit and scope of the claims.

Havingthus described my invention, what I claim and desire to secure by Letters Patent, is:

1. In a device of the character described, a journaled tubular member, a fan blade mounted upon said tubular member and capable of adjustment to neutral or reverse positions, a crank arranged within the tubular member and fixedly associated with said blade, and means extending into the tubular member for actuating said crank and causing the same to adjust the blade to neutral or reverse positions.

2. In a device of the character described. a, stationary spindle, a tubular member mounted thereon, a plurality of fan blades mounted upon said tubular member and capable of adjustment to neutral or reverse positions, cranks arranged within the tubular member and fixedly associated with the respective blades, and means extending into the tubular member for actuating said cranks and causing the same to adjust the blades to neutral or reverse positions.

3. In a device of the character described a stationary spindle, a tubular member mounted thereon, a plurality of fan blades mounted upon said tubular member and capable of adjustment to neutral or reverse positions, cranks arranged within the tubular member and fixedly associated with the respective blades, connecting rods rotatable with the tubular member and extending into the same to actuate said cranks and cause the same to adjust the blades to neutral or reverse positions, a rotary annulus to which the outer ends of said connecting rods are connected, a disk slidable upon the spindle and upon which said annulus is mounted, and means for adjusting said disk longitudinally of the spindle to efiect the operation of said connecting rods.

4. In a device of. the character described a stationary spindle, a tubular member mounted thereon, a plurality of fan blades mounted upon said tubular member and capable of adjustment to neutral or reverse ositions, cranks arranged within the tubuar member and fixedly associated with the respective blades, connecting rods rotatable with the tubular member and extending into the same to actuate said cranks and cause the same to adjust the blades to neutral or reverse positions, a rotary annulus to which the outer ends of said connecting rods are connected, a disk slidable upon the spindle and upon which said annulus is mounted, a lever for adjusting;,said disk longitudinally of the spindle to effect the operation of said connecting rods, resilient means tending to move said lever in one direction, and manually controlled means 'for moving said lever in the opposite direction.

In testimony whereof I afiix my signature. in the presence of two witnesses.

LOUIS R. STREET. Witnesses:

L. J. FISCHER, F. C. FISCHER. 

